CVE-2019-14748 : Security Advisory and Response
Learn about CVE-2019-14748, a vulnerability in osTicket versions prior to 1.10.7 and 1.12.1 allowing for persistent XSS attacks. Find out the impact, affected systems, and mitigation steps.
A vulnerability has been identified in versions of osTicket prior to 1.10.7 and 1.12.x prior to 1.12.1, allowing for persistent cross-site scripting (XSS) attacks.
Understanding CVE-2019-14748
This CVE pertains to a security flaw in osTicket versions that could lead to XSS attacks with potentially severe consequences.
What is CVE-2019-14748?
- The vulnerability exists in the file-upload feature of the Ticket creation form in osTicket.
- Lack of proper content checks on uploaded files allows for persistent XSS attacks.
- Attackers could exploit this to steal cookies or engage in other malicious activities.
The Impact of CVE-2019-14748
- Non-agent users could upload malicious files that are displayed incorrectly, leading to XSS vulnerabilities.
- This could result in cookie theft or other harmful actions.
Technical Details of CVE-2019-14748
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
- The file-upload feature in osTicket lacks adequate mitigations for checking uploaded file content.
- Improper handling of file output leads to persistent XSS vulnerabilities.
Affected Systems and Versions
- Versions of osTicket before 1.10.7 and 1.12.x before 1.12.1 are impacted by this vulnerability.
Exploitation Mechanism
- Attackers can upload malicious files, such as .html files, which are displayed incorrectly, enabling XSS attacks.
Mitigation and Prevention
Protecting systems from CVE-2019-14748 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Upgrade osTicket to version 1.10.7 or 1.12.1 to mitigate the vulnerability.
- Educate users on safe file uploading practices to prevent malicious uploads.
Long-Term Security Practices
- Implement regular security training for users to recognize and report suspicious activities.
- Conduct periodic security audits to identify and address vulnerabilities.
Patching and Updates
- Stay informed about security updates and patches released by osTicket to address known vulnerabilities.